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问题 单项选择题

已知A物重力的大小P=20kN，B物重力的大小Q=30kN，滑轮C、D不计质量，并略去各处摩擦，则绳水平段的拉力为( )kN。

A．24
B．28
C．26
D．32

答案

参考答案：A

不定项选择

社会主义时期文学活动主要价值取向有（）

A、为人民服务

B、为社会主义服务

C、为工农兵服务

D、为政治服务
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单项选择题 案例分析题

The appearance of the island when I came on deck next morning was altogether changed. Although the breeze had now utterly failed, we had made a great deal of way during the night, and were now lying becalmed about half a mile to the southeast of the low western coast. Grey-colored woods covered a large part of the surface. ③This even tint was indeed broken up by streaks of yellow sandbreak in the lower lands, and by many tall trees of the pine family, out-topping the others — some singly, some in clumps, but the general coloring was uniform and sad. ④The hills ran up clear above the vegetation in spires of naked rock. All were strangely shaped, and the Spy Glass, which was by three or four hundred feet the tallest on the island, was likewise the strangest in configuration, running up sheer from almost every side, ⑤and then suddenly cut off at the top like a pedestal to put a statue on.

文中③段画线部分翻译正确的是（）。

A.这种平均的色彩确实被一条条的黄沙在低地打破

B.这种素净的色彩诚然也杂有一条条带状的黄沙低地

C.这种均匀的色彩也确实被一条条黄沙在低地被隔断
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